"You hear about those things, and you become concerned," concerned neighbor Mark Cruz said.

And thieves have also been targeting cars at a post office on Walters. They burgarlized them, according to deputies, as the victims were doing business inside.

Customers are now noticing warning signs outside the post office that are reminding them to lock, take and hide valuables.

"I think it's really sad. There's not a lot of places that you can be safe around, and you should at least be safe to go to the post office and check your mail and things like that," Sweeney said.

According to Harris County Sheriff's Office records, deputies have responded to at least 11 robberies and theft crimes off FM 1960 between Walters Road and Veterans Memorial in the past two weeks.

"It makes you wonder about the people that live around here. Because I'm not so sure that it's the people that live around here that are actually committing the crimes," Cruz said.

For now, business owners are hoping someone recognizes the gun-toting thief before he strikes again.

The business owner who shared that surveillance video with us says the thief has an accomplice and they were riding in a blue Volkswagen Jetta.

Crime Stoppers will pay up to $5,000 for any information called in to the 713-222-TIPS (8477) or submitted online at www.crime-stoppers.org that leads to the filing of felony charges or arrest of the suspect(s) in this case. Tips can also be sent by text message. Text TIP610 plus your tip to CRIMES (274637). All tipsters remain anonymous. ___________________________________________________________